Hi guys,  Hope this time someone replies

first of all, Is that possible to combine all above Asp.net and Ajax controls? 

The below one is my web user control code which I am using in the webpart zone.

<asp:UpdatePanel ID="UpdatePanel1" runat="server">

    Now the only problem is to how to get the value of TextBox1 and TextBox2 and pass it on btnSubmit button's OnClientClick event as highlighted above without using full postback. Is that anyway I can pass this two values on Page2.aspx on submit button click without round trip????

Please help, If no one can answer this , then atleast lets discuss.

 should I use javascript or ne great idea???

What if you step out of the quotes in your OnClientClick statement to pass the textbox values?  Maybe like this:

OnClientClick="window.open('Page2.aspx?a=' + '" & textbox1.text & "' + ',' + '" & textbox2.text & "', '_blank');" 

Oops...I read your question wrong.  I think you will have to use JavaScript.

<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="return MyScript();" UseSubmitBehavior="false"/>

Then add a script in your page...maybe something like this:

<script type="text/javascript">
    function MyScript(){
        window.open('Page2.aspx?a=' + textbox1.value + '&b=' + textbox2.value, '_blank');
    } 
</script>

thanks for you reply..

   but the problem is its not recognizing textbox1 or textbox2.... as it is nested in masterpage -> webpartzone -> updatepanel..... so i cant just simply use the javascript function as on simple aspx page without masterpage or without webpartzone etc...

 again thanks for your time